Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Firefox won't connect but other browsers do. Only works after i uninstall and download but won't carry on working

  • 1 freagra
  • 4 leis an bhfadhb seo
  • 6 views
  • Freagra is déanaí ó cor-el

more options

After updating Firefox, it won't connect. IE works fine. Every time I start Firefox and it doesn't work, I close it and an error box appears saying "Firefox has stopped working. Close the program or Check online for solution and close the program." Firefox only seems to work after I uninstall it and then download a fresh copy but then it only works once and I have to uninstall and download again. It always has to be a fresh download, I can't use the same download exe every time. My firewall does allow Firefox through but every time I download another copy I have to allow it again and it works till I close Firefox.

After updating Firefox, it won't connect. IE works fine. Every time I start Firefox and it doesn't work, I close it and an error box appears saying "Firefox has stopped working. Close the program or Check online for solution and close the program." Firefox only seems to work after I uninstall it and then download a fresh copy but then it only works once and I have to uninstall and download again. It always has to be a fresh download, I can't use the same download exe every time. My firewall does allow Firefox through but every time I download another copy I have to allow it again and it works till I close Firefox.

All Replies (1)

more options

Try to start Firefox in Safe Mode by holding down the Shift (Mac: Options) key to see if that works.


It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) to see if that helps.